Presser-foot for sewing-machines



(No Model.)

B. P. WARREN.

PRESSYER FOOT FOR SEWING MACHINES; No. 369,141. Patented Aug. 30, 1887.

" e @nim war/fle N. Pmaa' Fhabulllognphar. Washington. 0.1;

, UNITE STATES PATENT O FICE.

BENJAMIN F. WARREN, OF BOSTON,

MASSACHUSETTS, ASSIGNOR TO THE ADDAX BASTING MACHINE COMPANY, OF PORTLAND, MAINE.

PRESSER-FOOT FOR SEWING-MACHINES.

SPECIFICATION forming part of Letters Patent No. 369,141, dated August 30,1887. Application filed Novemher26, 1886. Serial No. 219,910. (No model.)

To all whom it may concern.-

Be it known that I, BENJAMIN F. WARREN, of Boston, county of Suffolk, and State of Massachusetts, have invented an Improvement in a Presser-Foot for Sewing-Machines, of which the following description, in connection withthe accompanying drawings, is a specification, like letters on the drawings representing like parts.

This invention has for its object to construct a presser-foot for sewingmachines, and is especially designed to be used in connection with basting-machines making a very long stitch.

In accordance with thisinvention apresserfoot consisting of a suitable shank and'footplate attached to it has suitably connected with its lower end-as at the heel of the foot-- plate-an auxiliary foot-plate, the under surface of which lies flush with the under surface of the main foot-plate, to thus form an extension of said main foot-plate.

A suitable locking device is provided for locking the auxiliary foot-plate down in position to bear upon the material, such a looking device being preferably so constructed as to also look the foot-plate in its vertical position when it is desired to use the main presserfoot.

Figure 1 shows in side elevation a presserfoot embodying this invention, and Fig. 2 a left-hand side view of the presser-foot shown in Fig. l.

The shank a has at its lower end the footplate a, and at its upper end a socket, a providedwith a set-screw, (L as usual.

An auxiliary foot-plate, b, somewhat similar to the foot-plate a, is hinged to the heel of the foot-plate at, extending in the opposite direction, the under surface of the said auxiliary foot-plate lying flush with the under surface of the foot-plate a, to thus form an extension of the said foot-plate a.

The auxiliary foot-plate b is locked in its downward position by a suitable locking device, herein shown as a flat spring-arm, c, loosely connected with a pivot or stud, c, screwed into the shank a, the lower end of the said spring-arm entering asuitable groove or passage cut in a shoulder, 0 at the upper side of the auxiliary foot-plate b. I

By employing a presser-foot having a very long foot-plate-such as may be obtained by adding the auxiliary foot-plate b to the main foot-plate-a very long stitch may be held down upon the material, such as a bastingstitch.

When it is not desired to employ a very long stitch, the auxiliary foot-plate b may be upturned, as shown in dotted lines, Fig. 1, and the locking device or spring-arm a will also be upturned, and when the parts are in this position the short projecting end 0 of the spring-arm will extend downward far enough be turned down parallel with the foot-plate a,

or not, as desired, substantially as described.

2. In a presser-foot for sewing-machines, a shank, a, and foot-plate a, combined with an independent auxiliary foot-plate, b, loosely connected with the foot-plate a, and a look ing device for locking the auxiliary foot-plate 6 down flush with the foot-plate a, substantially as described.

3; In a presser-foot for sewing-machines, the shank a, the foot-plate a, and an independent auxiliary foot-plate, Z), 1OOSelyC0n--90 nocted with the foot-plate aat or near itsjunction with the shank a, combined with a looking device for locking the auxiliary footplate down flush with the foot-plate a, and also in its vertical position, substantially as described. 5 i

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

BENJAMIN F. WVARREN.

Witnesses:

G. W. GREGORY, F. CUTTER. 

